Thanks treks, Please find my answers below: Does the engine crank at normal speed? YesDo you see any warning lights on the dashboard when it won't start? NoDid you replace the battery recently? No, 10-12 months backDo you have a smart key, and when last did you replace the battery in the key? Yes, and battery changed long ago, but if its weak it fails completely and dont behave like this.Does the problem only happen when the car was parked in the sun? No, it's always under shade.Does the car run normally once it does start? YesDoes it run normally all of the time? YesDoes the idling fluctuate, or does it idle unevenly? NoHas the fuel consumption changed at all- does it now use more fuel than before? Don't know exactly but its more or less same as beforeDoes it take three or four attempts to start it when it won't start, and do you smell fuel when it does not want to start? Yes 3-4 cranking, but no smell.How long do you crank the engine for when you try to start it? Only once, but when it delays it cranks for 4-5 times in one go before starting. Otherwise half crank it starts daily.